The MHLF accessory – Mortise, Hinge, Lock + Flute – works with your CRB7 Precision Router Base to enter an entirely new level of machining accuracy never before achieved with a hand held power-tool. Until now a routers position has been entirely dependent on the operator’s technique and grip. This becomes especially critical when routing into the edge of a board from above. The narrow workpiece reduces the surface contact area between router base and workpiece to the point of dangerous instability. The MHLF is a pair of micro adjustable precision machined jaws that sit on either side of the work piece re-establishing a safer level of surface contact between router and workpiece. The result is accurate mortises, hinge and lock rebates as well as the attractive accent of fluting. The CRB7 Precision Router Base is not included.